432965821 has 2 divisors, whose sum is σ = 432965822. Its totient is φ = 432965820.

The previous prime is 432965789. The next prime is 432965831. The reversal of 432965821 is 128569234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366722500 + 66243321 = 19150^2 + 8139^2 .

It is a cyclic number.

It is not a de Polignac number, because 432965821 - 2⁵ = 432965789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (432965831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216482910 + 216482911.

It is an arithmetic number, because the mean of its divisors is an integer number (216482911).

Almost surely, 2^432965821 is an apocalyptic number.

It is an amenable number.

432965821 is a deficient number, since it is larger than the sum of its proper divisors (1).

432965821 is an equidigital number, since it uses as much as digits as its factorization.

432965821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 432965821 is about 20807.8307615186. The cubic root of 432965821 is about 756.5155709050.

The spelling of 432965821 in words is "four hundred thirty-two million, nine hundred sixty-five thousand, eight hundred twenty-one".